V3 Update Manual
Firmware Update using USB-UART adapter
In order to use USB-UART adapter instead of Program Card you will need to invert signal coming from
Bind pin of the receiver to Rx pin of the adapter. s.Bus inverter circuit or similar will perfectly work for
thispurpose. Below are a simple schematic circuit for your reference:
The rest is the same as with Program card. When connected to the PC you will have to manually select a
correct COM port that is assigned to USB-UART adapter. You will be able to do so from a drop-down
menu in the updating program. In case of Program Card, the program detects the UATR port
automatically